Higher Fiber Intake Is Linked to Lower Risk of Several Chronic Diseases

What Happened

A large systematic review found that people with the highest fiber intake had roughly 15-30% lower risk of all-cause and cardiovascular mortality, and 16-24% lower incidence of coronary heart disease, stroke, type 2 diabetes, and colorectal cancer, with benefits greatest around 25-29g of fiber per day.

Informational content based on peer-reviewed research and major health authority guidelines — not medical advice.

Why It Matters

A 15-30% mortality risk reduction tied to a single, widely under-consumed nutrient is a rare case in nutrition science where the effect size is large and the fix (more fiber) is genuinely simple to act on.

25-29g a day is the target — most diets fall well short of it.

FET's Takeaway

The 25-29g/day sweet spot is a genuinely useful formulation target — most Western diets fall well short of it, which means fiber fortification is one of the higher-leverage, lower-controversy reformulation moves available.